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Extrusions do not affect degenerative morphologic changes in lateral meniscus allografts during midterm follow-ups

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Abstract
Purpose: To investigate degenerative morphological changes in meniscus allograft after lateral meniscus allograft transplantation (MAT) based on extrusions. Methods: Ninety-one patients who underwent lateral MAT were divided into extruded and non-extruded groups. Serial magnetic resonance imaging scans obtained 6?weeks, 1?year, and at the last follow-up (midterm, 3?7?years) post-surgery were evaluated retrospectively. Degenerative morphological changes at each time point in each group were compared using the postoperative meniscal width, thickness, and intrameniscal signal intensity (IMSI) at the anterior horn, mid-body, and posterior horn. The Lysholm scores and meniscal tears based on graft extrusion were also investigated. Results: The mean age was 33.7 ± 11.1?years (64 men and 27 women). Fifty-three (58%) and 38 knees (42%) were classified into the non-extruded and extruded groups, respectively. The overall meniscal width of the mid-body decreased from 9.6 ± 1.3 to 6.5 ± 1.2?mm (p < 0.01), and IMSI of mid-body was increased from 1.2 ± 0.1 to 1.7 ± 0.1 (p < 0.01) during midterm follow-ups. No significant differences were observed between the meniscal width, thickness, and IMSI at the anterior horn (n.s.), mid-body (n.s.), and posterior horn (n.s.) of the two groups during the midterm follow-ups. The incidence of meniscus tears and Lysholm scores did not differ significantly between the groups during midterm follow-ups. Conclusion: The overall meniscus width of mid-body decreased while the relative IMSI of mid-body increased during midterm follow-ups after lateral MAT. Meniscal allograft extrusions did not influence postoperative changes in meniscus width, thickness, and relative intrameniscal signal intensity. Level of evidence: Level III
Author(s)
김종민박준구빈성일손동욱이동오이범식이창락
Issued Date
2021
Type
Article
Keyword
AdultFemaleFollow-Up StudiesHumansKneeKnee Injuries - diagnostic imagingKnee Injuries - pathologyKnee Injuries - surgeryMagnetic Resonance ImagingMaleMedicineMedicine &amp; Public HealthTibial - diagnostic imagingTibial - pathologyTibial - transplantationOrthopedicsRetrospective StudiesTransplantation of organstissuesetcTransplantationHomologousYoung Adult
DOI
10.1007/s00167-020-06120-3
URI
https://oak.ulsan.ac.kr/handle/2021.oak/8659
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_proquest_miscellaneous_2423515147&amp;context=PC&amp;vid=ULSAN&amp;lang=ko_KR&amp;search_scope=default_scope&amp;adaptor=primo_central_multiple_fe&amp;tab=default_tab&amp;query=any,contains,Extrusions%20do%20not%20affect%20degenerative%20morphologic%20changes%20in%20lateral%20meniscus%20allografts%20during%20midterm%20follow-ups&amp;offset=0&amp;pcAvailability=true
Publisher
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
Location
EU(유럽연합)
Language
영어
ISSN
0942-2056
Citation Volume
29
Citation Number
4
Citation Start Page
1197
Citation End Page
1205
Appears in Collections:
Medicine > Medicine
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